Interaction between surface waves on wire lines.
Proc Math Phys Eng Sci
The Royal Society
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Molnar, D., Schaich, T., Al-Rawi, A., & Payne, M. (2021). Interaction between surface waves on wire lines.. Proc Math Phys Eng Sci https://doi.org/10.1098/rspa.2020.0795
This paper investigates coupling between electromagnetic surface waves on parallel wires. Finite-element method (FEM)-based and analytic models are developed for single- and double-wire Sommerfeld and Goubau lines. Models are validated via measurements for Goubau lines and a comparison between the analytic and the FEM-based computations for coupled Sommerfeld- and Goubau-type lines is carried out. The measurements and calculations show remarkable agreement. The FEM-based and analytic models match remarkably well too. The results exhibit new favourable effects for surface waves propagation over multiple conductors. The short-range behaviour of the coupled wires and, consequently, the existence of an optimum separation of coupled wires is one of the most significant findings of this paper. We comment on the relevance of our results, particularly in relation to applications of high bandwidth demands and cross-coupling effects.
Computational Electromagnetism, Electromagnetic Surface Wave, Millimetre Wave Technology
External DOI: https://doi.org/10.1098/rspa.2020.0795
This record's URL: https://www.repository.cam.ac.uk/handle/1810/335193
Attribution 4.0 International
Licence URL: https://creativecommons.org/licenses/by/4.0/